Safety Instrumented Systems (SIS)

Safety is the most critical concern in Oil and Gas industry. It is the lynchpin of your company’s reputation and sustainability. Oil & gas operators spend a major amount of CAPEX and OPEX budgets insuring plant, personal and equipment safety. The key element of any successful Safety Instrumented system (SIS) is a direct function of its availability, reliability and integration with the plant’s central control system. SIS if not integrated seamlessly can result in reduced operator efficiency leading to increased downtime and operational risk Segal Petro Niru provides Safety Instrumented Systems that are not only proven in managing catastrophic risks but also are tightly integrated with the main control system to enhance overall plant availability and reliability. With our huge experience in the domain of oil & gas automation we ensure a seamless integration of disparate control systems, which helps in minimizing project costs in the short run and reducing plant maintenance and shutdown costs over the life of the asset.


Yokogawa puts an end to DCS-SIS incompatibility with the ProSafe-RS, the world’s first truly integrated "safety PLC" for the process industries. Achieving absolute integrity between distributed control system (DCS) and safety instrumented system (SIS) for plant automation has traditionally raised complex design and integration issues. Conventionally, two separate monitoring and operating environments were required for a DCS and SIS. Different communications and distinctive hardware architectures had to be set up. Plant managers striving to optimize process operations have taken it as a given that project time and expenses would escalate. ProSafe-RS R4.01 adopts the same architecture as CENTUM VP R6 to improve the engineering environment. This version features an exciting expansion of I/O lineup. In addition, the FieldMate™ Validator software has been enhanced to work with this latest version of ProSafe-RS. Thus it reduces the time required to configure and install an SIS.


The fail-safe SIMATIC controllers are available for ensuring the functional safety of machines or plants. They facilitate compliance with relevant standards: EN 954-1 up to Cat. 4, IEC 62061 up to SIL 3, and EN ISO 13849 up to PL e. The SIMATIC S7-400F CPUs can be expanded in distributed configurations with the safety I/O modules of the ET 200S, ET 200M, ET 200pro (IP67) or the safety digital block peripheral device ET 200eco (IP67).